In the case of elderly patients, it is recommended that the best choice can be applied to electronic blood pressure monitor. First of all, the mercury sphygmomanometer, the patient’s own operation is not very convenient, and sometimes improperly closed, resulting in water overflow, not only can pollute the air, but also lead to the patient’s blood pressure measured by the sphygmomanometer is not accurate. If the blood pressure tested is not accurate, it is not known what blood pressure lowering drugs are currently taking, or how the real blood pressure of the patient is currently. The electronic blood pressure monitor, as long as the blood pressure is not particularly high, generally speaking, there is no problem at all with the electronic blood pressure monitor measurement, because the electronic blood pressure monitor is more convenient to operate, when the elderly are measured with the mercury blood pressure monitor. If the patient itself exists hearing loss, relatively speaking, will also affect the accuracy of the measured blood pressure, while electronic blood pressure is directly electronic readings, relatively speaking, the reference is greater.